Guide for hoisting wheels



June 112, 11923.

A. H. NELLER GUIDE FOR HOYISTING WHEELS Filed June 30, 1922 DIN '1 NVEN TOR gawk/r2 ATTORNEY Fatentedldlune 12,

enure-n: sires To aZZ'wkom-it may concern:

Beit known that I, ALBERT H. a I citizen of the 'United States, residing at.

rear FFHCE.

ALBERT H. marten, or FAIRFIELD, Iowa, assiemon'ro run o unnii macmiinnir comment; or ra nrrnnn, rowan ooaronnrion or rows. 1 1

GUIDE non HOISTING WHEELS.

192a. Serial no. 571,970.

wheel, and the upper ends of the arms are pivoted 1n the opposite sides of the frame approximately in linewith the vertical cen-.

Fairfield, in the county of Jefierson and' ter of the chain andapproximately on a State of Iowa, have invented a new and useful Improvement in Guides for Hoisting Wheels, of which the following is a specification.

My invention relates to uides designed to prevent a hoisting chain rom approaching the hoisting wheel in a twisted or kinky condition, and also, to assist in conducting the chain away from thewheel after passing over it; and it consists of an improved construction and arrangement of the guides which will be described herein and will be more specifically set forth in the claims.

In the accompanying drawings forminga part of this specification, Fig. 1 is a vertical section drawn throu h the longitudinal center of a hoisting wheel having guides embodyingmy invention, a side view being shown of the portion of the chain passing over the wheel. F i 2 is'a transverse section on line 2-2 0 Fig. 1 looking in the direction of the arrow, the cut awaypora tions of the Wheel and guides being replaced to make the structure complete, and a side view being shown of the chain and the wheel. Fig. 3 is a side view of one of the guides and Fig. 4 is a perspective of the other. Fig. 5 is a horizontal section on line 55 of Fig. 3.-

Referring to the drawings, S represents sides. forming a frame of a hoisting wheel, which may be fitted with a supporting link L. An axle A ispassed through, or may be journaled in the frame, and upon this axle, a wheel W is mounted between the sides of the .frame. shown in Fig. 1, or be of solid metal, if preferred. The wheel W is fitted to receive and hold in contact therewith the links of a chain C, whereby when the wheel is rotatedthe chain will be carried over it without slipping thereon. Within the frame and adjacent to the wheel but on opposite sides, two chain guides, G and H, are mounted, and the chaln C is pamed through openings in the bodies of these guides.

The ide G is set on the elevating side of the wheel, and is provided with a pair of upwardly extending, approximately par allel arms 1, which are passed up on opposite sides of the chain on that side of the The axle may be tubular, as"

level with the horizontal center of the wheel, or preferably, a little above said center, as shown by dotted lines in Fig. 1, and by cross section lines in FigDQ. Laterally outstandingbosses or lugs may be formed on the upper ends of the arms, which are adapted to enter holes in the adjacent sides of the frame and thereby form pivots for the guide G. 1 j

The guide H, which is set on the opposite side of the wheel, is fitted'with an upwardly extended portion J having a vertically disposed g roove in its center and an upwardly extended finger K, on its opposite side, which is adapted to stand in the under side of the groove of the wheel, throu h which the chain is passed. The guide may be held in place by a bolt B, passed through" an eye E in one side of its-lower end, as most plainly shown in F i 1.

A. lug F on the side of tie guide H (preferably a lug on each side),-may also be used to assist in holding it in position by having its end inserted in a suitable recess in the adjacent side S of the frame, as will be readily understood by those skilled in the art. 'By this means the member 1-1 will be held in a substantially fixed position in close proximesser ity to the wheel, but-will not bev permitted to come into direct contact with it, thus obviating frictional contacttherewith. The opening in the body of each of the guides,

is cross shaped, as most plainly shown in Fig. 5, to loosely fit the contour of the chain, and the upper and lower edges are preferably rounded so the chain will pass freely through the openings.

In operation, the load to be elevated (not shown) .is attached to the end of the chain below .the guide Power, bein applied, which may be done in any suitab e manner known to the art, either to the wheel or to the opposite end of, the chain, the chain carrying the load will be drawn u through the guide G, and over the wheel and then down throughthe guide H.- If the chain should become twisted, either by the load swingin around, or in any other way, the guide G will straighten it'before it comes in contact with the wheel, and the chain will always approach the wheel in'the proper osition to pass freely over it and will not twisted, as it would be'liable to be if it was not straightened, by the guide) proportioned.

. If the end of the chain carrying the load should be swun over to one side so it would not be per endicular or the frame of the wheel shouiil be tilted over to one side, the uide G will be free to swing on its pivots to an equal extent, and having the upstanding parallel arms pivotedin opposite sides and transversely in line with the center of the chain approximately on a level with the horizontal center of the wheel, the

I guide will always be in line with the chain, and the" chain will never become cramped therein, as it would be liable to if the uide was not pivoted in alignment with the c ain. Also having the two upstanding arms and two separate pivots, the guide wil be stronger than if it had only one arm and one pivot, and in every way, it will be better The guide'I-I on opposite side'is arranged to receive the chain after it passes over the wheel,'toconduct it downwardly away from the wheel, and to prevent it from stickin therein, as it might do especially when t 0 power is applied to the wheel and this end of the chainis slack. The groove,

in the upstandin end J is adapted to re- "'ceive the outstan in edges of the links of v the chainand to con not them down through I the bodIyof-the 'guide' while the upstanding" finger on the opposite side is adapted to prevent the inner edges of the links from sticking in the-groove, and from being car'- ried under the wheel .by friction in the groove.

In'returning the chain for another load,

-if the portion under the guide H should become twisted or kinked it will be straight-- ened by the guide before it reaches the wheel, but as this part of the chain will then be partly slack, if not entirely slack, it will easily accommodate itself to the fixed vertical position of the guide and therefore there .will be no; necessity of pivoting the guide H as thereis of pivoting the guide Gr.

f the axle A should be used to rotate the wheel it will have to bejournalled in the frame and rigidly secured to the wheel, but if the hoistin means should be connected to the free en of the chain or other means should be used to rotate the wheel, the shaft the elevating portion of the chain is passed, whereby in passing, will be straitened,

1f twisted, before being drawn on to the wheel, and upstanding approximately parallel arms on opposite sides of the straitening member, said arms being pivoted in opposite sides of the frame approximately in line with the transverse center of the chain where it comes in contact with the wheel.

2. In guides for hoisting wheels in which an elevating chain isused, a frame for the wheel, having opposite sides, a straitening member having an opening in its body to fit the contour of the chain, and through which the elevating portion of the chain is passed, whereby-in passing, it will be straitened, if twisted, before being drawn on to the wheel, upstanding approximately par allel arms on opposite sides ofthe straitening member, aterally outstanding bosses on the upper ends of said arms, said bosses being insertdin holes in opposite sides of the frame, and forming pivots for the straitening member approximately in line with the transverse center of the chain where it comes in contact with the wheel.

3. In guides for hoisting wheels in .which an elevating chain is used, a frame for the wheel having opposite sides, a detaching member located in the frame adjacent to the wheel where, in elevating, the chain descends after passing over the wheel, a vertically disposed opening in the body of said member to fit the contour of the chain, an upstand-' ing portion on the outer side above the body of the member approximately level with the wheel to conduct the descending chain into. the o ening of the member, and an upstanding nger on the inner side of the, body of the member between the chain and the part of the wheel with which the chain is in contact, whereby the descending chain will be prevented from sticking to the wheel.

ALBERT H. NELLER. 

